English verb conjugation
CAN LICENSE

Regular verb: license - licensed - licensed

Affirmation

Simple form	V-ing form
I can license you can license he can license we can license you can license they can license	I can be licensing you can be licensing he can be licensing we can be licensing you can be licensing they can be licensing
Perfect	V-ing perfect
I can have licensed you can have licensed he can have licensed we can have licensed you can have licensed they can have licensed	I can have been licensing you can have been licensing he can have been licensing we can have been licensing you can have been licensing they can have been licensing

Negation

Simple form	V-ing form
I cannot license you cannot license he cannot license we cannot license you cannot license they cannot license	I cannot be licensing you cannot be licensing he cannot be licensing we cannot be licensing you cannot be licensing they cannot be licensing
Perfect	V-ing perfect
I cannot have licensed you cannot have licensed he cannot have licensed we cannot have licensed you cannot have licensed they cannot have licensed	I cannot have been licensing you cannot have been licensing he cannot have been licensing we cannot have been licensing you cannot have been licensing they cannot have been licensing

Interrogative form

Simple form	V-ing form
can I license? can you license? can he license? can we license? can you license? can they license?	can I be licensing? can you be licensing? can he be licensing? can we be licensing? can you be licensing? can they be licensing?
Perfect	V-ing perfect
can I have licensed? can you have licensed? can he have licensed? can we have licensed? can you have licensed? can they have licensed?	can I have been licensing? can you have been licensing? can he have been licensing? can we have been licensing? can you have been licensing? can they have been licensing?

Interro-negative form

Simple form	V-ing form
can I not license? can you not license? can he not license? can we not license? can you not license? can they not license?	can I not be licensing? can you not be licensing? can he not be licensing? can we not be licensing? can you not be licensing? can they not be licensing?
Perfect	V-ing perfect
can I not have licensed? can you not have licensed? can he not have licensed? can we not have licensed? can you not have licensed? can they not have licensed?	can I not have been licensing? can you not have been licensing? can he not have been licensing? can we not have been licensing? can you not have been licensing? can they not have been licensing?